There are only two types of bitcoin exchanges.  Those who have already been hacked, and those they are still trying to hack.

“Don’t leave your coins on an exchange.”

“Yet people never seem to learn, or take the advice of the people that warned them that this could happen”

 Correct!  There is a fool born every minute.   The only way to learn is the painful way.   You tell a child not to put his finger in the candle, because it will burn.  Yet every child still puts his finger in the candle, as soon as your back is turned.  That child still doesn’t learn to listen to his parent, but he does learn not to put his finger in candles.

It’s just the way the world is.  

Now we have the internet, people should learn the risks themselves.  We no longer need a nanny state trying to protect pepole from their own stupidity.